#ifndef _LIBCFS_BITMAP_H_
#define _LIBCFS_BITMAP_H_
-#if !defined(__linux__) || !defined(__KERNEL__)
+#ifndef __KERNEL__
#define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))
#define BITS_TO_LONGS(nr) DIV_ROUND_UP(nr, 8 * sizeof(long))
#define DECLARE_BITMAP(name, bits) \
unsigned long name[BITS_TO_LONGS(bits)]
-#endif
+#endif /* !__KERNEL__ */
typedef struct {
- int size;
- unsigned long data[0];
+ unsigned int size;
+ unsigned long data[0];
} cfs_bitmap_t;
#define CFS_BITMAP_SIZE(nbits) \
RETURN(ptr);
}
+static inline void CFS_RESET_BITMAP(cfs_bitmap_t *bitmap)
+{
+ if (bitmap->size > 0) {
+ int nbits = bitmap->size;
+
+ memset(bitmap, 0, CFS_BITMAP_SIZE(nbits));
+ bitmap->size = nbits;
+ }
+}
+
#define CFS_FREE_BITMAP(ptr) LIBCFS_FREE(ptr, CFS_BITMAP_SIZE(ptr->size))
static inline
static inline
void cfs_bitmap_copy(cfs_bitmap_t *new, cfs_bitmap_t *old)
{
- int newsize;
+ size_t newsize;
LASSERT(new->size >= old->size);
newsize = new->size;